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What is the difference between the HCl and non-HCl forms of BZP?
Q: I have ordered a large quantity of 1-benzylpiperazine and it is in liquid form. What is the difference between converting it into HCI form and just letting it dry overnight on a mirror and smoking the hardened material. Also, is there a difference in the amount that needs to be smoked to get the high?

A: Liquid freebase BZP readily forms a solid when left at room temperature and exposed to
air. The freebase itself will not form a solid (but is an oil at normal temperatures
and pressures), but it actually reacts with the carbon dioxide in the air to form a
carbonate salt. This salt, as with the other salts of BZP is a solid at room temperature.

When working with BZP oil, the crystals form so quickly that a drop on the table can become
white and dry powder in just a few minutes and containers of the oil become encrusted with
BZP-carbonate crystals. We don't have much information about the BZP-carbonate, but it should vaporize under flame-heat.

Many freebases like BZP can be reacted with Hydrochloric acid (either gas or solution). This protinates the amine groups and forms an HCl salt. This will be more water soluble and is often the form prepared for oral use.

It should be noted that the dose (weight wise) neccessary for an oral effect will be less for the freebase form than the HCl salt, and MUCH less for the smoked or snorted dose. Users should be very careful and start with a much smaller dose than they expect to need and work the dose up to find their own proper dose.

Be very careful,



Asked By : Deadhead
Answered By : psilo, splash, earth
Published Date : 6 / 7 / 2001
Last Edited Date : 6 / 12 / 2001
Question ID : 2732

Categories: [ Chemistry ] [ Piperazines ]

Ask Erowid v1.7 - Jul, 2005

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